If `alpha,betaa n dgamma` are roots of `2x^3+x^2-7=0` , then find the value of `sum(alpha/beta+beta/alpha)` .

If alpha , beta , gamma are the roots of the equations x^3+px^2+qx+r=0 find the value of sum1/alpha

If alpha,beta,gamma are the roots of the equation x^3+4x+1=0, then find the value of (alpha+beta)^(-1)+(beta+gamma)^(-1)+(gamma+alpha)^(-1) .

If alpha and beta are the roots of the equation x^2 + 2x +8=0 then the value of (alpha)/(beta) + (beta)/(alpha) is ………………….. .

If alpha,betaa n dgamma are the roots of x^3+8=0 then find the equation whose roots are alpha^2,beta^2a n dgamma^2 .

If alpha and beta are roots of the equation x^(2) + 2x + 8 = 0 the the value of (alpha)/(beta) + (beta)/(alpha) is ………….. .

If alpha and beta are the roots of x^(2)+6x-4=0 , find the value of (alpha-beta)^(2) .

If alpha and beta are the roots of the equation 3x^(2) - 5x + 2 = 0 , then find the value of alpha^2beta + alphabeta^2 .